JPS5435604A - Ringing system of push-button telephone set - Google Patents

Ringing system of push-button telephone set

Info

Publication number
JPS5435604A
JPS5435604A JP10188777A JP10188777A JPS5435604A JP S5435604 A JPS5435604 A JP S5435604A JP 10188777 A JP10188777 A JP 10188777A JP 10188777 A JP10188777 A JP 10188777A JP S5435604 A JPS5435604 A JP S5435604A
Authority
JP
Japan
Prior art keywords
push
telephone set
button telephone
ringing system
ringing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10188777A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6155304B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Yoshiichi Sano
Taiji Sato
Shinichi Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10188777A priority Critical patent/JPS5435604A/ja
Publication of JPS5435604A publication Critical patent/JPS5435604A/ja
Publication of JPS6155304B2 publication Critical patent/JPS6155304B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP10188777A 1977-08-25 1977-08-25 Ringing system of push-button telephone set Granted JPS5435604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10188777A JPS5435604A (en) 1977-08-25 1977-08-25 Ringing system of push-button telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10188777A JPS5435604A (en) 1977-08-25 1977-08-25 Ringing system of push-button telephone set

Publications (2)

Publication Number Publication Date
JPS5435604A true JPS5435604A (en) 1979-03-15
JPS6155304B2 JPS6155304B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-11-27

Family

ID=14312436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10188777A Granted JPS5435604A (en) 1977-08-25 1977-08-25 Ringing system of push-button telephone set

Country Status (1)

Country Link
JP (1) JPS5435604A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853290A (ja) * 1981-09-25 1983-03-29 Taiko Denki Seisakusho:Kk ボタン電話装置における着信表示方式
JPS5862956A (ja) * 1981-10-09 1983-04-14 Nippon Telegr & Teleph Corp <Ntt> ボタン電話機の着信音送出回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853290A (ja) * 1981-09-25 1983-03-29 Taiko Denki Seisakusho:Kk ボタン電話装置における着信表示方式
JPS5862956A (ja) * 1981-10-09 1983-04-14 Nippon Telegr & Teleph Corp <Ntt> ボタン電話機の着信音送出回路

Also Published As

Publication number Publication date
JPS6155304B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-11-27

Similar Documents

Publication Publication Date Title
IT7869841A0 (it) Apparecchio telefonico ad altoparlante
JPS5327332A (en) Sound response unit of entirely double type
JPS5421107A (en) Automatic response unit for telephone line
JPS5435604A (en) Ringing system of push-button telephone set
JPS5361903A (en) Unnecessary signal sound suppressor for telephone set
JPS53110305A (en) Telephone set
JPS5210005A (en) Telephon
JPS5422107A (en) Telephone calling device
NZ186190A (en) Acoustic call receiver circuit
JPS53132911A (en) Telephone set
JPS5370701A (en) Individual selection call receiver
JPS5319703A (en) Simultaneous call and its unit
JPS52142908A (en) Simple hand free telephone call equipment
JPS526404A (en) Calling system of the button telephone set
JPS53128208A (en) Ringer signal detector circuit
JPS5371502A (en) Individual-selection and call receiver
JPS5332771A (en) Digital wristwatch
JPS5210004A (en) Switching circuit by voice signal
JPS5296803A (en) Telephone unit
JPS51130106A (en) Selective signal control system
JPS5231603A (en) Distributor
JPS5429903A (en) Conference service system of key telephonen system
JPS5247302A (en) Portable telephone system
JPS5387606A (en) Recording and reproducing device
JPS52151504A (en) Alarm sending system